Distinguish between the following pairs on the basis of the words indicated in the brackets []:

Green and Variegated leaves [Examples]

Distinguish between the following pairs on the basis of the words indicated in the brackets []:

Xylem and Phloem [Function]

Draw a neat diagram of "opened and closed stomata" and answer the following questions :

1. Label the following in the diagram : Guard cells, Stoma, Nucleus, Inner wall, Outer wall and Chloroplast.
2. Mention the condition of guard cells during open and closed stomata.
3. Write the specific location of these structures in the plant body.
4. Name three important processes of plants in which the stomata are involved.
5. Are the stomata open or closed during the day and night respectively ?

The figure given below represents a process in plants. Study the same and answer the following questions :

1. Identify the process and define it.
2. Write balanced equation depicting the entire process.
3. Name the organelle and pigment responsible for the process.
4. Mention two by-products of the process.
5. What is the significance of the process ? State two points.